Spin density distribution in iron-silicon alloys
Spin density distribution in iron-silicon alloys
复制标题
铁硅合金中的自旋密度分布
DOI：
10.1088/0305-4608/2/2/026
复制
发表时间：
1972
期刊：
影响因子：
--
通讯作者：
P. Brown
中科院分区：
文献类型：
--
作者：
J. Moss;P. Brown
用极化中子衍射法测定了两种铁硅合金（近似成分为Fe_3Si和Fe_4Si）的自旋密度分布。观测到的数据已被校正的消光效应，并已被分析的标准傅立叶方法，也通过表示的球谐函数的密度分布。后一种分析方法表明一个非中心对称密度周围的铁网站和一个解释，这已被建议在s-d交换相互作用的符号随距离的变化。
The spin density distributions in two alloys of iron and silicon (approximate compositions Fe3Si and Fe4Si) have been determined by polarized neutron diffraction. The observed data have been corrected for the effects of extinction and have been analysed by the standard Fourier method and also by expressing the density distribution in terms of spherical harmonics. The latter method of analysis indicated a non-centrosymmetric density around one of the iron sites and an explanation for this has been suggested in terms of a change of sign with distance for the s-d exchange interaction.